Aptness

Apt´ness

n.	1.	Fitness; suitableness; appropriateness; as, the aptness of things to their end. The aptness of his quotations. - J. R. Green.
	2.	Disposition of the mind; propensity; as, the aptness of men to follow example.
	3.	Quickness of apprehension; readiness in learning; docility; as, an aptness to learn is more observable in some children than in others.
	4.	Proneness; tendency; as, the aptness of iron to rust.

Noun	1.	aptness - a disposition to behave in a certain way; "the aptness of iron to rust"; "the propensity of disease to spread" Synonyms: propensity
	2.	aptness - appropriateness; "the phrase had considerable aptness" Synonyms: appositeness Antonyms: inappositeness, inaptness - in appropriateness; "greater inaptness of expression would be hard to imagine"